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What's the difference between size_t and int in C++?

...ndly Wikipedia: The stdlib.h and stddef.h header files define a datatype called size_t which is used to represent the size of an object. Library functions that take sizes expect them to be of type size_t, and the sizeof operator evaluates to size_t. The actual type of size_t is platform-dependent; ...
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Can I force a page break in HTML printing?

... Add a CSS class called "pagebreak" (or "pb"), like so: @media print { .pagebreak { page-break-before: always; } /* page-break-after works, as well */ } Then add an empty DIV tag (or any block element that generates a box) where you wan...
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Get class name of object as string in Swift

... Is this really the case? According to the docs for String for this initializer "an unspecified result is supplied automatically by the Swift standard library" when it doesn't conform to Streamable, or CustomStringConvertible, or Cust...
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App Inventor 2 向心力实验App - 探究向心力F与角速度ω、半径r、质量m的关...

...a   初始化局部变量 m = 取文本为数字(文本输入框_质量.文本)   初始化局部变量 r = 取文本为数字(文本输入框_半径.文本)   设置 全局变量 向心力 为 m × 全局变量 向心加速度      设置 标...
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How to set specific java version to Maven

On my machine I have two java versions installed: (1.6 and 1.7 installed manually by me). I need both of them for different projects. But for Maven I need 1.7, now my Maven uses 1,6 java version, how can I set Maven to use 1.7? ...
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Transposing a 2D-array in JavaScript

... array[0].map((_, colIndex) => array.map(row => row[colIndex])); map calls a provided callback function once for each element in an array, in order, and constructs a new array from the results. callback is invoked only for indexe...
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Why does SIGPIPE exist?

...zero timeout) to consume any pending SIGPIPE signal (which is sent to the calling thread, not the process) before unmasking it again. I believe the reason SIGPIPE exists is much simpler: establishing sane default behavior for pure "filter" programs that continuously read input, transform it somehow...
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Get city name using geolocation

... as to which one will have the city. "administrative_area_level_1" is usually what you are looking for but sometimes locality is the city you are after. Anyhow - more details on google response types can be found here and here. Below is the code that should do the trick: <!DOCTYPE html> ...
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In-place type conversion of a NumPy array

...Py array of int32 , how do I convert it to float32 in place ? So basically, I would like to do 6 Answers ...
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How to compare arrays in JavaScript?

I'd like to compare two arrays... ideally, efficiently. Nothing fancy, just true if they are identical, and false if not. Not surprisingly, the comparison operator doesn't seem to work. ...